Disk Space Analyzer is a small app to find out who use the most part of the hard-drive (or any other drive connected to your computer) space. The app quickly analyze drives or folders to build an easy to understand tree-map of disk usage. From the tree-map you can quickly locate which folders or file types (movie files, music files, backup files, etc) are taking-up the most part of the space.


-Scan drives or folders quickly
-Display scanned results in an easy to understand tree-map
-View space consumption by folders
-View space consumption by file types (movie files, music files, backup files, etc)
-Open or view scanned folders or files content from context menu.

What’s New

Version 1.0.4

Minor improvements and bug fixes.

Ratings and Reviews

theguitarboy ,

Wish I could get my money back

This is poor software. It was apparently thrown together in a hurry, judging from how sloppy it is. The color codes of the labels on the pie graph are reversed. Really? The pie chart is only available for the entire drive, not individual folders. It is therefore useless. I want to see a pie chart of the largest files on my drive broken down by folder or entire drive. The list on this app is difficult to read and gives no visual indication of what files are taking up the most space on the drive. I recommend the developers of this app learn how to write useful and engaging software with a well designed user interface.

sbmckinney ,

Simple. Functional. Awesome.

Great little piece of software for what I needed. I was prepping my laptop to install a new large piece of software and I really needed to understand what folders had the largest footprints, so I could determine if any could be archived. This software helped me accomplish that task perfectly.

Thank you to the developer!

SMcCandlish ,

Helpful and simple, but 1 bug, and could use more features

This seems to run about as fast as the Unix du command in "list it all" mode (and that may be where it’s getting its data). This is not an in-depth analytic tool, but quite effective at what it’s aimed to do. I was able to notice and reclaim 23GB of my startup SSD’s quite limited space in seconds after the scan finished (I had a spare working copy of any old /opt directory structure from MacPorts still laying around), and, analyzing only the Applications folder, ID an app instantly that I never use, which was sucking up 7GB of SSD when I would have thought it was under 1GB. It’s really easy to see where the big-ol’ folders are. I’m using it to decide which apps to move off my SSD and just alias to the Applications folder. Lie Acrobat Pro, which I need less than once per 6 months, is blowing 1.2% of my SSD space! A game I’d forgotten about, 11.4%!!! So, huzzah for this app. There are various older tools to do this sort of thing, but this just did it, fast and without complications (other than the one bug I detail below).

Quite seriously: After you get into Detail mode, you have to restart the app to get back to the general view (under OS X 10.10.4); attempting to use Back freaks out the app’s display and locks it up. It doesn’t do this every time. I was able to get into Detail view then hit Back when just viewing a single folder’s results, but it freaked out when I did it with the whole SSD’s results (500GB drive).

Most of the previous reviewer’s complaints make any sense. I too am using 1.0.0, and there is no problem being able to find which specific files are large; the table’s columns are sortable, just like they are in the Finder. The color coding is not wrong. The gripe about only be able to index whole drives not individual folders isn’t correct, either. There’s a big "Select folder" button, and you can also drag-drop a folder into the lower part of the starting window (though you may have to wait for focus to shift to the app’s window; just hover a moment with the selection to be dropped). The user interface is adequate for its tasks

Other than the bug fix, the most important features to add:
* Save (as text) and print (to PDF in most cases) of the lists generated, since the longer ones are not much good for certain purposes, and one is likely to want to put them in an editor and do stuff with them.
* Search function, both plain text and non-greedy grep
* Expand/collapse all nested folders option, to show the entire directory tree’s contents.
* Ability to define custom file types to identify, and edit/remove/restore the defatult ones. New video formats, for instance, are defined all the time, and I might want to track down specific ones, like .wmv, for conversion to something more efficient. I might also want to find the largest text files on the system with a specific extension, or whatever. Contrarily, I have no use at all for the "3D Image" category (0.0 MB, since I don’t do 3D dev). The simplest solution would be a) show arbitrary extension, with a radio button to add it to currently displayed list or alone, and b) save this selection (newly or replacing old one with same name), with a custom color. You alread have the color selector popup code in at least one of your other apps. PS: This part of the app can be functionally simplified by getting rid of the dropdown to select file type, and just make the palette of file types clickable (and scrollable when more are added).
* To run with previous (rude) reviewer’s one good suggestion: Ability to generate more pie charts (and maybe other formats of charts), using various criteria. It would be nice to see a pie chart of the 10 most disk-hogging folders, and be able to change that to the to 25 or whatever. Or get a bar chart showing space used in folder A by .mkv files vs. folder B by .webm files, or whatever.
* Ability to get back into the file list you just generated after you hit Back to get back to the pie chart; it should cache that data, not make me reload it again, since on a big drive that can take 15+ minutes. Just doing my Appications folder takes 3.5 minutes (on a 12-core 2.93GHz Mac Pro 2010 with an SSD and 48GB of RAM).


Priyo Hutomo
748.1 KB
OS X 10.9 or later, 64-bit processor
Age Rating
Rated 4+
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